我国钼矿资源丰富，居世界第2位，以河南省钼矿资源最为丰富。工业染料污染已成全球性的主要环境污染问题之一，80%以上是偶氮染料污染物。多钼氧酸盐由于其特异性结构及其在催化领域、环境污染治理等领域应用而备受关注。为了研究和开发具有潜在应用价值的新型多钼氧酸盐光催化材料，本项目旨在利用杂多钼氧酸盐前驱体与3d 和4f 金属离子原位反应，制备新型杂多钼氧酸盐3d-4f 异金属衍生材料。多金属氧酸盐光催化氧化降解染料主要是破坏染料的发色基团，使其降解为无污染的小分子物质。我们采用纳米复合技术把目标材料与TiO2纳米材料进行复合，改善光催化性能，建立催化模型，探索催化机理。系统探索TiO2纳米粒子大小及TiO2纳米粒子表面目标材料担载量对催化性能的影响。该项目的实施不但可推动多金属氧酸盐化学、光催化化学、环境化学等学科领域的发展，而且可扩大河南省优势资源的深入利用，助推中原经济区建设。

Molybdenum resources in our country are abundant and rank the second in the world. Molybdenum resources in henan province are the most abundant. Industrial dye pollution has become one of the main global environmental pollution problems. More than 80% of dye pollutants are the azo dyes. Heteropolyoxomolybdates have attracted much attention due to their specific structures and applications in catalysis and environmental pollution control. In order to research and develop novel polyoxomolybdate-based photocatalytic materials with potential applications, this project aims at using the in-situ reactions of heteropolyoxomolybdate precursors with 3d and 4f metal ions to prepare novel heteropolyoxomolybdate 3d-4f heterometallic derived materials. During the course of photocatalytic oxidation degradation of dyes, polyoxometalates mainly damage the chromophoric groups of dyes and make them become non-polluting small organic molecules. We will adopt the nanocomposite technology to combine target materials with TiO2 nanomaterials and improve their photocatalytic performance. The catalytic model will be established and the catalytic mechanism will be also explored. Moreover, systematically explore the influence of TiO2 nanoparticle sizes and the loading amount of target materials on the surface of TiO2 nanoparticles on catalytic properties. Therefore, The implementation of this project not only can promote the developments of polyoxometalate chemistry, photocatalytic chemistry and environmental chemistry, but also can extensively take the advantage of the superior resources of henan province and drive the construction of the economic zone of central China.